3.4M104 – our answer to challenging locations

Our 3.4M104 was developed with high-wind onshore locations in mind. With a rotor surface of 8,495 m² and hub heights between 73 and 100 metres, it guarantees excellent economic efficiency. The 3.4M104 also served as the platform on which all other turbine types in the 3.XM series were developed.


Design data

Nominal power 3,400 kW (LV-side) 3,370 kW (MV-side)
Cut-in wind speed 3.5 m/s
Nominal wind speed 13.5 m/s
Cut-out wind speed 25 m/s
Restart cut-in wind speed 22 m/s
Operating temperature range -20 – +35 °C

Certification

Hub height Wind class DIBt Wind zone
73 m IEC IB -
78 – 80 m IEC IB, IEC IIA WZ 4, GK I
96.5 – 100 m IEC IIA WZ 4, GK I

Rotor

Diameter 104 m
Rotor area 8,495 m²
Rotor speed 7.1 – 13.8 1/min (+15 %)
Power control Electrical pitch

Rotor blade

Blade length 50.8 m
Type Glass fibre-reinforced plastic (GFRP)
Max. chord width 3.9 m

Gear system

Type Three-stage planetary / spur gearbox
Gear ratio i = approx. 87
Type of suspension Three-point contact suspension

Weight

Rotor blade Approx. 12 t
Nacelle without drive train Approx. 58 t
Rotor Hub Approx. 23 t

Electrical system

Nominal power 3,400 kW (LV-side) 3,370 kW (MV-side)
Nominal voltage 10/20/30 kV
Nominal frequency 50 Hz
Generator Double-fed-induction generator
Generator protection class IP 54
Stator voltage 950 V
Speed range 600 – 1,200 1/min
Converter type Pulse width modulation IGBTs (liquid-cooled)
Transformer ITS (Cast resin transformer)

Sound power level

Maximum sound power level 105.6 db (A)

Power curve

 

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Contact us

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Please use this fom for general requests.

Senvion Headquarters

Überseering 10
22297 Hamburg

Phone: +49 40 5 55 50 90-0
Fax: +49 40 5 55 50 90-39 99
info[at]senvion.com

Senvion Headquarters

Überseering 10
22297 Hamburg

Phone: +49 40 5 55 50 90-0
Fax: +49 40 5 55 50 90-39 99
offshore.sales[at]senvion.com

Senvion Headquarters

Überseering 10
22297 Hamburg

Phone: +49 40 5 55 50 90-0
Fax: +49 40 5 55 50 90-39 99
sales[at]senvion.com